BF: spelling error in committing fixed
NF: accuracy computation

RF: replaces not the best implementation of accuracy in aggregate
ENH: a couple of small improvements

ENH: label rotation better
ENH: single axis in subplots is not returned as a list anymore
ENH: prettier legend entries (no brackets)
BF: get_signal works; initial bug fixes of other things
Merge branch 'master' of github.com:qbilius/psychopy_ext

* 'master' of github.com:qbilius/psychopy_ext:
  BF: commit output fixed